Digestion Flashcards
Ingestion
You eat the food
Digestion
A series of chemical reaction, whereby you convert the ingested food to smaller and smaller molecules
Absorption
Small molecules are absorbed through cells of your digestive system and pass into the nearby blood or lymphatic vessel
Transport
Your circulatory system delivers the small molecules to your body cells
What contains the gastric juice? What is the function of them?
Pepsin - the enzyme which is most active in a acidic pH.
Hydrochloric acid - helps degree and break down food and creates the acidic pH which is needed for pepsin.
Mucus - lines the inside of the stomach wall to prevent stomach damage from hydrochloric acid
What is put in the small intestine in order to continue the digestive process?
- Bile from the liver and gall bladder.
* trypsin (a protease), lipase, amylase and bicarbonate from the pancreas
What is a villi?
A finger like extension with a big surface area, which helps absorb mostly glucose, amino acids and fatty acids, and brings it into the blood (circulatory system)
What is the function of the large intestine?
To absorb water
Why is water kept long in the alimentary canal as long as possible?
To keep the food in a fluid environment
What lives in the large intestine?
The bacteria Escherichia coli, which proved for us vitamin K and maintain a healthy environment for us when we provide them with nutrients, water and a warm environment
What happens with the food which was not digested from the bacteria or by us?
It will be eliminated from the body as solid waste or farces